If you want to make the skin of braised pork soft and rotten, you need to clean the meat, then cook it with boiling water, then add all kinds of ingredients and steam it in a pressure cooker for more than half an hour, preferably between half an hour and an hour. If the fire is too strong, it will become a paste, but if the fire is not enough, it will still not reach the soft and rotten taste. Then, stir-fry it with soy sauce and sugar water, and then stir-fry it with rock sugar, and then use simple ones.